int a, b;
int d;

void main() {
	int c, b;
	
    char bla;    
    bla = 'a';
    
    float a;
    fli = 5.25;
    
    while (a<b) {
		if(2*a>=b)
			intercambia(1+2);
		else
			break;
			
		a=a+1;		
	}
	
	b = a>3?2:1;
	
}

void intercambia() {
	int c;
	c=a;a=b;b=c;
}